And McDonald's thinks it has a way to combat our modern addiction. The fast food chain has recently introduced mobile phone lockers in one of its branches in Singapore, encouraging diners to take a break from the virtual world and have real conversations over meals.

Named the "Phone off. Fun On." campaign, the first 100 transparent lockers are installed in the McDonald's Marine Cove outlet.

...It's not the first time restaurants have tried to discourage mobile phone usage during meals. Earlier this month, a restaurant in southern France made the news by banning diners from using their mobile phones. Waiters would blow a whistle and show a yellow card when someone was caught using a phone.